Abstract: Novel, advantageous oral compositions formulated to affect any one or combination of the following: reduce physical and mental fatigue, enhance activity, improve recovery from activity, promote muscle performance, increase energy substrates, contribute to improved antioxidant defenses (i.e., reduce oxidative stress or lipid peroxidation, conserve anti-oxidants in the sera), enhance mood, assist in preventing primary and secondary diseases associated with fatigue and muscle atrophy associated with inactivity, improve nervous system (i.e., neuronal) and musculoskeletal (i.e., increase skeletal muscle protein synthesis, increase satellite cells) health, and contribute to improvements in overall health. The compositions of the subject invention are preferably used as a replacement for a snack or meal in cases of hunger or fatigue for individuals across the broad spectrum of human function from elite athletes to those individuals compromised by aging and certain disease states.